20-letter words containing o, i, r, e, a
- prefecture apostolic — a territory in the early stage of missionary development.
- premenstrual tension — Premenstrual tension is the same as premenstrual syndrome. The abbreviation PMT is often used.
- prepositional phrase — a phrase consisting of a preposition, its object, which is usually a noun or a pronoun, and any modifiers of the object, as in the gray desk I use.
- prescription glasses — corrective spectacles
- presentation manager — The elephantine graphical user interface to the OS/2 operating system.
- preservation society — a society dedicated to the preservation of something, especially a building, environment, or animal
- price discrimination — the practice of offering identical goods to different buyers at different prices, when the goods cost the same.
- price-dividend ratio — the ratio of the price of a share on a stock exchange to the dividends per share paid in the previous year, used as a measure of a company's potential as an investment
- price-earnings ratio — the current price of a share of common stock divided by earnings per share over a 12-month period, often used in stock evaluation. Abbreviation: p/e.
- primary optical area — a point in or toward the upper left-hand corner of a printed page, advertisement, or the like, looked at first in reading. Abbreviation: POA.
- primary spermatocyte — a male germ cell (primary spermatocyte) that gives rise by meiosis to a pair of haploid cells (secondary spermatocytes) that give rise in turn to spermatids.
- primitive polynomial — a polynomial that has content equal to 1. Compare content1 (def 11a).
- prince william sound — a sound in the Gulf of Alaska, on the S coast of Alaska: S end of Trans-Alaska oil pipeline at port of Valdez.
- priority inheritance — (parallel) A technique for avoiding priority inversion by temporarily raising the prioriry of all processes that want to access a shared resource to the highest priority level of any of them. Priority inversion occurs where a low priority process, L is holding a resource required by a high priority process, H, but L is not running because a medium priority process, M is running. Under priority inheritance, L temporarily inherits H's priority, allowing L to run and release the resource H is waiting for. For example, an ambulance (H) is stuck behind a lorry (L) waiting at a junction (the shared resource) for a gap in a line of cars (M) using the junction. Applying priority inheritance, the cars give way to the lorry as they would to the ambulance, thus allowing the lorry and then the ambulance to use the junction.
- private investigator — private detective. Abbreviation: PI, p.i., P.I.
- proactive inhibition — the tendency for earlier memories to interfere with the retrieval of material learned later
- production agreement — a contract concerning the production or manufacture of something
- programming language — a high-level language used to write computer programs, as COBOL or BASIC, or, sometimes, an assembly language.
- prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
- property speculation — the buying or selling of property in the hope of deriving capital gains
- proportional counter — a radiation counter in which the strength of each electric pulse generated per count is proportional to the energy of the particle or photon producing the pulse, alpha particles producing a different electric pulse from beta rays.
- proprietary medicine — a drug or agent manufactured and distributed under a trade name
- prosecuting attorney — the public officer in a county, district, or other jurisdiction charged with carrying on the prosecution in criminal proceedings.
- pyroligneous alcohol — methyl alcohol.
- quaker meeting house — a place where Quakers gather for worship
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- quarantine anchorage — an anchorage for ships awaiting a pratique.
- quasi-stellar object — quasar. Abbreviation: QSO.
- queen of the prairie — a tall plant, Filipendula rubra, of the rose family, having branching clusters of pink flowers, growing in meadows and prairies.
- rachel louise carson — Christopher ("Kit") 1809–68, U.S. frontiersman and scout.
- radiation resistance — the resistive component of the impedance of a radio transmitting aerial that arises from the radiation of power
- radio interferometer — any of several different types of instrumentation designed to observe interference patterns of electromagnetic radiation at radio wavelengths: used in the discovery and measurement of radio sources in the atmosphere.
- raise one's glass to — to drink the health of; drink a toast to
- rapid reaction force — a force that can be deployed swiftly to a site of conflict or potential conflict
- read the riot act to — to command to stop doing something regarded as wrong, under threat of punishment
- read-eval-print loop — (language, LISP, programming) (REPL) A programming structure within LISP which repeatedly reads a form from the user, evaluates it, and displays the result. A read-eval-print loop forms the basis of the Top-Level shell that programmers of the LISP family of languages interact with. In many dialects of LISP a very simple REPL could be implemented as: (loop (print (eval (read)))). (2003-06-23)
- real-time processing — data-processing by a computer which receives constantly changing data, such as information relating to air-traffic control, travel booking systems, etc, and processes it sufficiently rapidly to be able to control the source of the data
- receivables turnover — A receivables turnover is a measure of cash flow that is calculated by dividing net credit sales by average accounts receivable.
- reciprocal insurance — insurance in which members of a reciprocal exchange, acting through an attorney-in-fact, insure themselves and each other.
- reciprocating engine — an engine in which one or more pistons move backwards and forwards inside a cylinder or cylinders
- reconcile an account — If you reconcile an account, you compare the items in a bank statement, credit card statement, or vendor statement with the entries on your books and make sure that the statement and books match.
- recreational therapy — therapy by means of recreational activities engaged in by the patient
- recreational vehicle — a van or utility vehicle used for recreational purposes, as camping, and often equipped with living facilities. Abbreviation: RV.
- reductio ad absurdum — a reduction to an absurdity; the refutation of a proposition by demonstrating the inevitably absurd conclusion to which it would logically lead.
- refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
- refrigerator-freezer — a large appliance housing one compartment for refrigerating food and another for freezing.
- refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
- regenerative cooling — Physics. a method of cooling a gas, utilizing the rapid expansion of a compressed portion of the gas, before it becomes liquid, to cool the remainder.
- regional development — aid-giving to poorer areas or countries
- relative atomic mass — the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12